I've had the Elf version of the MUFE powder and it made me look like an absolute ghost in photos! I didn't mind the finish but it still looked a bit powdery, almost like I baby-powdered my skin. I was thinking of trying the Coty Airspun powder... any ideas if that would work? Thank you so much!

The bolded ingredient, Titanium Dioxide, is the primary cause of flashbacks (the ghost look) in makeup. It is primarily a SPF ingredient, and is found in quite a lot of makeups in varying degrees. So, look at all of those ingredients in the ELF powder, then look at the MUFE HD powder which has:

Made of 100 percent-mineral silica

You can find 100% silica from Coastal Scents here where you pay $3 for 1oz of product, whereas the MUFE is .3oz for $34. It's totally ridiculous! I would 100% give the pure silica a try =) Don't forget to sign up for their stuff, as you can earn money back for future purchase and a little always helps! (They're also having a bit of a sale on this stuff right now!)

Hope this helps! I can't give any feedback on the Airspun, since I've nevvvvvvvvvver used it nor heard of it, however if you look at the ingredients:

Zinc Oxide is listed, which is an SPF product and will cause flashbacks like your ELF powder. You 100% SHOULD USE SUNSCREEN PROTECTIONS, but they should be in a separate form under your foundation to minimize the flashbacks. I use a heavy duty sunscreen under my makeup and then avoid all additional SPF products if possible in my makeup.

EDIT: Oh LORD, so I did some more research and apparently 100% silica is also quite bad about photographs and flashbacks (as well as the stuff I mentioned) so that might not be the way to go either if you're concerned more about the white-face in photos. Darn. And here I thought I was being so helpful with the silica suggestion XD but, TIL!

Edit 2: But, most people recommend that silica is THE best finishing powder, and that blending is the key word for this rather than the usual method.

Thank you thank you thank you for being so informative! I didn't even check the ingredients on the Coty powder.. durrrrh. I'm thinking maybe Ben Nye Banana powder? I do have yellow/olive undertones.. I match pretty well to Loreal True Match W3.

No problem. I've heard good things about the Banana Powder for lots of reasons, so you could probably do a search for that on this subreddit for a bit of reviews! I've not used it personally, though =)